Finding the Fourth Proportional to 141,002.50, 194,600.73 and 81,386.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,002.50 : 194,600.73 = 81,386.50 : x
2. Step 2: Convert to fraction form
   141,002.50/194,600.73 = 81,386.50/x
3. Step 3: Cross multiply
   141,002.50x = 194,600.73 × 81,386.50
4. Step 4: Simplify right side
   141,002.50x = 15,837,872,312.15
5. Step 5: Solve for x
   x = 15,837,872,312.15/141,002.50
6. Step 6: Final answer
   x = 112,323.34