Finding the Fourth Proportional to 72,339.42, 99,877.15 and 45,156.89

Step by Step Solution

1. Step 1: Write the proportion equation
   72,339.42 : 99,877.15 = 45,156.89 : x
2. Step 2: Convert to fraction form
   72,339.42/99,877.15 = 45,156.89/x
3. Step 3: Cross multiply
   72,339.42x = 99,877.15 × 45,156.89
4. Step 4: Simplify right side
   72,339.42x = 4,510,141,476.06
5. Step 5: Solve for x
   x = 4,510,141,476.06/72,339.42
6. Step 6: Final answer
   x = 62,346.94