Finding the Fourth Proportional to 31,139,070.48, 42,971,746.20 and 17,201,384.40

Step by Step Solution

1. Step 1: Write the proportion equation
   31,139,070.48 : 42,971,746.20 = 17,201,384.40 : x
2. Step 2: Convert to fraction form
   31,139,070.48/42,971,746.20 = 17,201,384.40/x
3. Step 3: Cross multiply
   31,139,070.48x = 42,971,746.20 × 17,201,384.40
4. Step 4: Simplify right side
   31,139,070.48x = 739,173,524,725,439.25
5. Step 5: Solve for x
   x = 739,173,524,725,439.25/31,139,070.48
6. Step 6: Final answer
   x = 23,737,815.98