Finding the Fourth Proportional to 31,093,817.24, 42,909,618.10 and 17,155,171.40

Step by Step Solution

1. Step 1: Write the proportion equation
   31,093,817.24 : 42,909,618.10 = 17,155,171.40 : x
2. Step 2: Convert to fraction form
   31,093,817.24/42,909,618.10 = 17,155,171.40/x
3. Step 3: Cross multiply
   31,093,817.24x = 42,909,618.10 × 17,155,171.40
4. Step 4: Simplify right side
   31,093,817.24x = 736,121,852,956,606.25
5. Step 5: Solve for x
   x = 736,121,852,956,606.25/31,093,817.24
6. Step 6: Final answer
   x = 23,674,219.45