Finding the Fourth Proportional to 114,100.72, 157,439.91 and 66,356.08

Step by Step Solution

1. Step 1: Write the proportion equation
   114,100.72 : 157,439.91 = 66,356.08 : x
2. Step 2: Convert to fraction form
   114,100.72/157,439.91 = 66,356.08/x
3. Step 3: Cross multiply
   114,100.72x = 157,439.91 × 66,356.08
4. Step 4: Simplify right side
   114,100.72x = 10,447,095,263.15
5. Step 5: Solve for x
   x = 10,447,095,263.15/114,100.72
6. Step 6: Final answer
   x = 91,560.29