Finding the Fourth Proportional to 213,978,705.13, 321,077,879.54 and 101,931,444.05

Step by Step Solution

1. Step 1: Write the proportion equation
   213,978,705.13 : 321,077,879.54 = 101,931,444.05 : x
2. Step 2: Convert to fraction form
   213,978,705.13/321,077,879.54 = 101,931,444.05/x
3. Step 3: Cross multiply
   213,978,705.13x = 321,077,879.54 × 101,931,444.05
4. Step 4: Simplify right side
   213,978,705.13x = 32,727,931,914,024,152
5. Step 5: Solve for x
   x = 32,727,931,914,024,152/213,978,705.13
6. Step 6: Final answer
   x = 152,949,481.09