Finding the Fourth Proportional to 56,363.50, 77,784.06 and 31,213

Step by Step Solution

1. Step 1: Write the proportion equation
   56,363.50 : 77,784.06 = 31,213 : x
2. Step 2: Convert to fraction form
   56,363.50/77,784.06 = 31,213/x
3. Step 3: Cross multiply
   56,363.50x = 77,784.06 × 31,213
4. Step 4: Simplify right side
   56,363.50x = 2,427,873,864.78
5. Step 5: Solve for x
   x = 2,427,873,864.78/56,363.50
6. Step 6: Final answer
   x = 43,075.29