Finding the Fourth Proportional to 113,521.10, 156,677.56 and 65,802.11

Step by Step Solution

1. Step 1: Write the proportion equation
   113,521.10 : 156,677.56 = 65,802.11 : x
2. Step 2: Convert to fraction form
   113,521.10/156,677.56 = 65,802.11/x
3. Step 3: Cross multiply
   113,521.10x = 156,677.56 × 65,802.11
4. Step 4: Simplify right side
   113,521.10x = 10,309,713,089.76
5. Step 5: Solve for x
   x = 10,309,713,089.76/113,521.10
6. Step 6: Final answer
   x = 90,817.60