Finding the Fourth Proportional to 64,936,604,646.07, 89,580,670,124.17 and 56,350,980,982.95

Step by Step Solution

1. Step 1: Write the proportion equation
   64,936,604,646.07 : 89,580,670,124.17 = 56,350,980,982.95 : x
2. Step 2: Convert to fraction form
   64,936,604,646.07/89,580,670,124.17 = 56,350,980,982.95/x
3. Step 3: Cross multiply
   64,936,604,646.07x = 89,580,670,124.17 × 56,350,980,982.95
4. Step 4: Simplify right side
   64,936,604,646.07x = 5,047,958,638,607,020,851,200
5. Step 5: Solve for x
   x = 5,047,958,638,607,020,851,200/64,936,604,646.07
6. Step 6: Final answer
   x = 77,736,719,776.47