Finding the Fourth Proportional to 56,111,870.99, 77,487,858.16 and 53,054,922.04

Step by Step Solution

1. Step 1: Write the proportion equation
   56,111,870.99 : 77,487,858.16 = 53,054,922.04 : x
2. Step 2: Convert to fraction form
   56,111,870.99/77,487,858.16 = 53,054,922.04/x
3. Step 3: Cross multiply
   56,111,870.99x = 77,487,858.16 × 53,054,922.04
4. Step 4: Simplify right side
   56,111,870.99x = 4,111,112,273,399,021
5. Step 5: Solve for x
   x = 4,111,112,273,399,021/56,111,870.99
6. Step 6: Final answer
   x = 73,266,355.24