Finding the Fourth Proportional to 107,439.94, 148,312.58 and 72,522.16

Step by Step Solution

1. Step 1: Write the proportion equation
   107,439.94 : 148,312.58 = 72,522.16 : x
2. Step 2: Convert to fraction form
   107,439.94/148,312.58 = 72,522.16/x
3. Step 3: Cross multiply
   107,439.94x = 148,312.58 × 72,522.16
4. Step 4: Simplify right side
   107,439.94x = 10,755,948,656.77
5. Step 5: Solve for x
   x = 10,755,948,656.77/107,439.94
6. Step 6: Final answer
   x = 100,111.27