Finding the Fourth Proportional to 291,980.47, 437,969.99 and 70,364.47

Step by Step Solution

1. Step 1: Write the proportion equation
   291,980.47 : 437,969.99 = 70,364.47 : x
2. Step 2: Convert to fraction form
   291,980.47/437,969.99 = 70,364.47/x
3. Step 3: Cross multiply
   291,980.47x = 437,969.99 × 70,364.47
4. Step 4: Simplify right side
   291,980.47x = 30,817,525,870.43
5. Step 5: Solve for x
   x = 30,817,525,870.43/291,980.47
6. Step 6: Final answer
   x = 105,546.53