Finding the Fourth Proportional to 3,139,657, 4,710,187.50 and 1,145,113

Step by Step Solution

1. Step 1: Write the proportion equation
   3,139,657 : 4,710,187.50 = 1,145,113 : x
2. Step 2: Convert to fraction form
   3,139,657/4,710,187.50 = 1,145,113/x
3. Step 3: Cross multiply
   3,139,657x = 4,710,187.50 × 1,145,113
4. Step 4: Simplify right side
   3,139,657x = 5,393,696,938,687.50
5. Step 5: Solve for x
   x = 5,393,696,938,687.50/3,139,657
6. Step 6: Final answer
   x = 1,717,925.54