Finding the Fourth Proportional to 93,309.30, 139,877.28 and 34,131.42

Step by Step Solution

1. Step 1: Write the proportion equation
   93,309.30 : 139,877.28 = 34,131.42 : x
2. Step 2: Convert to fraction form
   93,309.30/139,877.28 = 34,131.42/x
3. Step 3: Cross multiply
   93,309.30x = 139,877.28 × 34,131.42
4. Step 4: Simplify right side
   93,309.30x = 4,774,210,192.14
5. Step 5: Solve for x
   x = 4,774,210,192.14/93,309.30
6. Step 6: Final answer
   x = 51,165.43