Finding the Fourth Proportional to 103,058,760.06, 142,219,494.90 and 56,648,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,058,760.06 : 142,219,494.90 = 56,648,016.72 : x
2. Step 2: Convert to fraction form
   103,058,760.06/142,219,494.90 = 56,648,016.72/x
3. Step 3: Cross multiply
   103,058,760.06x = 142,219,494.90 × 56,648,016.72
4. Step 4: Simplify right side
   103,058,760.06x = 8,056,452,325,005,155
5. Step 5: Solve for x
   x = 8,056,452,325,005,155/103,058,760.06
6. Step 6: Final answer
   x = 78,173,386.91