Finding the Fourth Proportional to 103,058,764.06, 142,219,500.42 and 56,648,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,058,764.06 : 142,219,500.42 = 56,648,020.72 : x
2. Step 2: Convert to fraction form
   103,058,764.06/142,219,500.42 = 56,648,020.72/x
3. Step 3: Cross multiply
   103,058,764.06x = 142,219,500.42 × 56,648,020.72
4. Step 4: Simplify right side
   103,058,764.06x = 8,056,453,206,580,208
5. Step 5: Solve for x
   x = 8,056,453,206,580,208/103,058,764.06
6. Step 6: Final answer
   x = 78,173,392.43