Finding the Fourth Proportional to 56,112,117.60, 77,488,200.72 and 53,055,171.84

Step by Step Solution

1. Step 1: Write the proportion equation
   56,112,117.60 : 77,488,200.72 = 53,055,171.84 : x
2. Step 2: Convert to fraction form
   56,112,117.60/77,488,200.72 = 53,055,171.84/x
3. Step 3: Cross multiply
   56,112,117.60x = 77,488,200.72 × 53,055,171.84
4. Step 4: Simplify right side
   56,112,117.60x = 4,111,149,804,772,012
5. Step 5: Solve for x
   x = 4,111,149,804,772,012/56,112,117.60
6. Step 6: Final answer
   x = 73,266,702.11