Finding the Fourth Proportional to 99,038.72, 148,491.56 and 39,012.32

Step by Step Solution

1. Step 1: Write the proportion equation
   99,038.72 : 148,491.56 = 39,012.32 : x
2. Step 2: Convert to fraction form
   99,038.72/148,491.56 = 39,012.32/x
3. Step 3: Cross multiply
   99,038.72x = 148,491.56 × 39,012.32
4. Step 4: Simplify right side
   99,038.72x = 5,793,000,256.02
5. Step 5: Solve for x
   x = 5,793,000,256.02/99,038.72
6. Step 6: Final answer
   x = 58,492.28