Finding the Fourth Proportional to 99,098, 136,722.16 and 56,071.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,098 : 136,722.16 = 56,071.52 : x
2. Step 2: Convert to fraction form
   99,098/136,722.16 = 56,071.52/x
3. Step 3: Cross multiply
   99,098x = 136,722.16 × 56,071.52
4. Step 4: Simplify right side
   99,098x = 7,666,219,328.88
5. Step 5: Solve for x
   x = 7,666,219,328.88/99,098
6. Step 6: Final answer
   x = 77,359.98