Finding the Fourth Proportional to 31,086,706.88, 42,898,897.91 and 17,147,756.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,086,706.88 : 42,898,897.91 = 17,147,756.79 : x
2. Step 2: Convert to fraction form
   31,086,706.88/42,898,897.91 = 17,147,756.79/x
3. Step 3: Cross multiply
   31,086,706.88x = 42,898,897.91 × 17,147,756.79
4. Step 4: Simplify right side
   31,086,706.88x = 735,619,867,919,719.25
5. Step 5: Solve for x
   x = 735,619,867,919,719.25/31,086,706.88
6. Step 6: Final answer
   x = 23,663,486.48