Finding the Fourth Proportional to 42,819,111.30, 64,210,004.55 and 17,251,623.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,819,111.30 : 64,210,004.55 = 17,251,623.30 : x
2. Step 2: Convert to fraction form
   42,819,111.30/64,210,004.55 = 17,251,623.30/x
3. Step 3: Cross multiply
   42,819,111.30x = 64,210,004.55 × 17,251,623.30
4. Step 4: Simplify right side
   42,819,111.30x = 1,107,726,810,587,886
5. Step 5: Solve for x
   x = 1,107,726,810,587,886/42,819,111.30
6. Step 6: Final answer
   x = 25,869,915.95