Finding the Fourth Proportional to 56,588.56, 78,094.56 and 31,438

Step by Step Solution

1. Step 1: Write the proportion equation
   56,588.56 : 78,094.56 = 31,438 : x
2. Step 2: Convert to fraction form
   56,588.56/78,094.56 = 31,438/x
3. Step 3: Cross multiply
   56,588.56x = 78,094.56 × 31,438
4. Step 4: Simplify right side
   56,588.56x = 2,455,136,777.28
5. Step 5: Solve for x
   x = 2,455,136,777.28/56,588.56
6. Step 6: Final answer
   x = 43,385.74