Finding the Fourth Proportional to 99,096.72, 136,714.55 and 56,632.47

Step by Step Solution

1. Step 1: Write the proportion equation
   99,096.72 : 136,714.55 = 56,632.47 : x
2. Step 2: Convert to fraction form
   99,096.72/136,714.55 = 56,632.47/x
3. Step 3: Cross multiply
   99,096.72x = 136,714.55 × 56,632.47
4. Step 4: Simplify right side
   99,096.72x = 7,742,482,368.28
5. Step 5: Solve for x
   x = 7,742,482,368.28/99,096.72
6. Step 6: Final answer
   x = 78,130.56