Finding the Fourth Proportional to 99,900.16, 137,874.24 and 64,077.04

Step by Step Solution

1. Step 1: Write the proportion equation
   99,900.16 : 137,874.24 = 64,077.04 : x
2. Step 2: Convert to fraction form
   99,900.16/137,874.24 = 64,077.04/x
3. Step 3: Cross multiply
   99,900.16x = 137,874.24 × 64,077.04
4. Step 4: Simplify right side
   99,900.16x = 8,834,573,191.45
5. Step 5: Solve for x
   x = 8,834,573,191.45/99,900.16
6. Step 6: Final answer
   x = 88,434.02