Finding the Fourth Proportional to 83,071.62, 124,479.86 and 56,382.93

Step by Step Solution

1. Step 1: Write the proportion equation
   83,071.62 : 124,479.86 = 56,382.93 : x
2. Step 2: Convert to fraction form
   83,071.62/124,479.86 = 56,382.93/x
3. Step 3: Cross multiply
   83,071.62x = 124,479.86 × 56,382.93
4. Step 4: Simplify right side
   83,071.62x = 7,018,538,950.88
5. Step 5: Solve for x
   x = 7,018,538,950.88/83,071.62
6. Step 6: Final answer
   x = 84,487.81