Finding the Fourth Proportional to 100,434,501.27, 138,591,959.72 and 56,372,987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   100,434,501.27 : 138,591,959.72 = 56,372,987.34 : x
2. Step 2: Convert to fraction form
   100,434,501.27/138,591,959.72 = 56,372,987.34/x
3. Step 3: Cross multiply
   100,434,501.27x = 138,591,959.72 × 56,372,987.34
4. Step 4: Simplify right side
   100,434,501.27x = 7,812,842,790,439,486
5. Step 5: Solve for x
   x = 7,812,842,790,439,486/100,434,501.27
6. Step 6: Final answer
   x = 77,790,427.51