Finding the Fourth Proportional to 83,343.60, 124,869.57 and 69,393.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,343.60 : 124,869.57 = 69,393.30 : x
2. Step 2: Convert to fraction form
   83,343.60/124,869.57 = 69,393.30/x
3. Step 3: Cross multiply
   83,343.60x = 124,869.57 × 69,393.30
4. Step 4: Simplify right side
   83,343.60x = 8,665,111,531.88
5. Step 5: Solve for x
   x = 8,665,111,531.88/83,343.60
6. Step 6: Final answer
   x = 103,968.53