Finding the Fourth Proportional to 99,926.61, 137,900.31 and 59,663.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,926.61 : 137,900.31 = 59,663.94 : x
2. Step 2: Convert to fraction form
   99,926.61/137,900.31 = 59,663.94/x
3. Step 3: Cross multiply
   99,926.61x = 137,900.31 × 59,663.94
4. Step 4: Simplify right side
   99,926.61x = 8,227,675,821.82
5. Step 5: Solve for x
   x = 8,227,675,821.82/99,926.61
6. Step 6: Final answer
   x = 82,337.19